Grain scourer and separator



(No Model.) 2 Sheets-Sheet 1.

G. S. GRANSON.

GRAIN SGOURER AND SBPARATOR.

No. 328.385. Patented Oct. 13, 1885.

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2 N 0 S A R HU S G GRAIN SUOURBR AND SEPARATOR.

Patented Oct. 13

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' UNTTE STATES ATENT FTCEO GILES S. CRANSON, OF SILVER GREEK, NE\V YORK.

GRAIN SCO URER AND SEPARATOR;

SPECIFICATION forming part of Letters Patent No. 328,385, dated Qctober13, 1885.

Application filed April 8, 1885. Serin1No.161,546. (No model.)

T0 all whom it may concern.-

Be it known that 1, Guns S. CRANSON, of Silver Creek, in the county ofChautauqua, in the State of New York, have invented new and usefulImprovements in Grain Scou rers and Separators, of which the followingisa specification.

This invention relates to an improvement in that class of combined grainscourers and separators which comprise ahorizontal perforatedscouring-cylinder in which the grain is scoured by arms or teeth securedto a revolving drum and wind-trunks in which the grain is freed from thelight impurities.

The object of my'invention is to produce a simple and compact machine ofthis kind which will effect a more perfect cleaning or scouring of thegrain, and a more complete separation of the detached impurities fromthe grain.

My invention consists, to these ends, of the improvements in theconstruction of the maehine,which will be hereinafter fully set forth,and pointed out in the claim.

In the accompanying drawings, consisting of two sheets, Figure 1 is aside elevation of my improved machine. Fig. 2 is a top plan view of thesame. Fig. 3 is a longitudinal sectional elevation of my improvedmachine. Fig. 4 is a cross-section in line :0 m, Fig. 3. Fig. 5 is across-section, on an enlarged scale, in line y 7 Fig. 3. Fig. 6 is asectional elevation of one end ofthe scouringdrum on an enlarged scale.

Like letters of reference refer to like parts in the several figures.

A represents the stationary main frame,and a the longitudinal shaftsupported in bearings a a secured to the frame A.

B represents the scouringdrum, secured to the shaft a,and provided onits periphery with projecting arms or flights b.

0 represents the perforated scouring-cylinder surrounding the drum B,and D the tight ase which surrounds the cylinder 0. (Z is the annularair-passage formed between the cylinder O and case D.

E represents the fan-blades, secured to the shaft a near the feed end ofthe scouring-cylinder, and E represents the fan-case, which incloses theblades or wings E.

F represents the stationary feed hopper,

supported on an upward extension of the frame A, and G represents theshaking-shoe or separating-screen,which receives the grain fromthefeed-hopper and sifts out the sand I represents the hopper whichreceives the grain from the lower end of the ascending leg of thepreliminary wind-trunk and conducts the same to the interior of thescouring-cylinder O, by means of a spout, 2 which extends through theair-passage (Z.

K represents the head which closes the feed end of thescouring-cylimler, and which is provided with openings L in line withthe annular passage d, through which the latter communicates with theinner eye, it, of the fanease by a short cylinder or tube, 7.-:-.

L represents the head which closes the tail end of thescouring-cylinder, and which is provided with openings 1, in line withthe annular passage d, through which air is drawn into said passage fromthe subsequent wind-trunk M, which latter is arranged at the outer sideof the head L.

N is the dischargespout through. which the grain is delivered from thescouring-cylinder G into the wind-trunk M. m is an air-opening formed inthe wind-trunk M, and provided with an adjustable cover, m, whereby theadmission of air to the trunk M through said opening can be regulated orshut off, as may be necessary,to regulate the air-current passingthrough the wind-trunk M.

O is a hopper or receptacle formed at the lower side of the case D andopening into the annular air-passage (Z,for collecting the scourings orheavy material which drops out of the air-current in the passage (1. Thehopper O provided with a discharge-ope ning, 0, havng a valve, 0 bywhich the accumulated iat-erial is discharged from time to time.

The scouring cylinder is constructed of IlIG-ClOl h woven of square oredged steel rires, whereby the grain is frequently turned n its passagethrough the cylinder and thorughly scoured by contact with the sharpdges of the cloth. The rotating arms or .ights I) bring the grainforcibly in contact ;'ith the wire-cloth cylinder and cause the .ernelsto rub against each other, wherebythe ust, dirt, and loose outer skinsof the kerels, as well as the projecting portions of the erms, arecompletely detached without breakng the grain. This renders the machineesecially effective for scouring buckwheat,and lso renders the machinevery useful for scour- ]g and cleaning wheat and other grain.

The flights 1) upon the front portion of the rum B are inclined to feedthe material to- 'ard the discharge end of the scouringcylider, whilethe flights upon the rear portion f the cylinder are arranged at rightangles to 1e direction of rotation, whereby the grain retarded in therear portion of the cylinder nd effectually scoured before it isdischarged. he drum B is composed of sections connected y longitudinaloverlapping joints 7', secured ttheir ends toheads 1-, which arefastened the shaft a. rovided with longitudinal ribs or corrugaons whichincrease the scouring action.

The grain, which has been freed from the oarse foreign matter by thesieve G and the ght impurities by the preliminary windrunk H, enters thescouring-cylinder C, and l scoured in the same partly by contact with 1esharp edges of the wirecloth and partly y attrition. The scoured grainescapes from 1e cylinder 0 by the spout N, and enters the The surface ofthe drum B is some extent by said enlargement, while the lightimpurities continue in the air-current, and are carried with the samethrough the openings k in the head K and the tube 70 to the fan.

I do not in this application desire to claim the general features of the,scourer and sep arator which are claimed in another application for apatent showing an upright machine and filed of even date herewith,Serial No. 161,545, but limit this application to the specificimprovements in the construction of the horizontal machine which arepointed out in the claim.

I claim as my invention The combination, with the perforated horizontalscouring-cylinder C and inclosing-case D, separated by an annular spaced, and the fan E, of the heads K L, provided with openings 70 Z, thewind-trunk M, arranged on the rear side of the head L and communicatingwith the openings Z, and the spout N, which delivers the secured graininto the wind-trunk M, substantially as set forth.

Witness my hand this 30th day of March,

GILES S. ORANSON. Witnesses:

JNo. J. BONNER, CARL F. GEYER.

